Digitizing apparatus, digitizing method and capacitance touch sensing apparatus

A capacitance touch sensing apparatus, comprising:

• a capacitance touch panel;
• a multiplexer, coupled to the capacitance touch panel;
• a waveform generator, for generating a square wave signal according to a capacitance value generated by the capacitance touch panel via the multiplexer;
• and
• a digitizing apparatus, comprising:
• a timing control unit, for generating a first control signal according to the square wave signal and a predetermined value;
• a period counter, for generating a first digital value according to the first control signal and a reference clock signal;
• a phase digitizer, for generating a second digital value according to a phase difference between the square wave signal and the reference cock signal;
• and
• a calculation unit, for generating an output digital value according to the first digital value and the second digital value.

A digitizing method, comprising:

• generating a first control signal according to a square wave signal and a predetermined value;
• counting according to a reference clock signal and the first control signal to generate a first digital value;
• digitizing a phase difference between the square wave signal and the reference clock signal to generate a second digital value;
• and
• calculating according to the first digital value and the second digital value to generate an output digital value.